Seiko Cal. 6391 - 824

This Hand-Winding model from 1970 features a 42mm Hardlex-Coated Steel case. It features a Navy dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-18b8c51ec03f]

Also known as: Goldfeather, Crown

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

14.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1970

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